######################################################################
# Runtime configuration file for Exim #
######################################################################
# This is a default configuration file which will operate correctly in # uncomplicated installations. Please see the manual for a complete list # of all the runtime configuration options that can be included in a # configuration file. There are many more than are mentioned here. The # manual is in the file doc/spec.txt in the Exim distribution as a plain # ASCII file. Other formats (PostScript, Texinfo, HTML, PDF) are available # from the Exim ftp sites. The manual is also online at the Exim web sites.
# This file is divided into several parts, all but the first of which are # headed by a line starting with the word "begin". Only those parts that # are required need to be present. Blank lines, and lines starting with # # are ignored.
########### IMPORTANT ########## IMPORTANT ########### IMPORTANT ###########
# #
# Whenever you change Exim's configuration file, you *must* remember to #
# HUP the Exim daemon, because it will not pick up the new configuration #
# until you do. However, any other Exim processes that are started, for #
# example, a process started by an MUA in order to send a message, will #
# see the new configuration as soon as it is in place. #
# #
# You do not need to HUP the daemon for changes in auxiliary files that #
# are referenced from this file. They are read every time they are used. #
# #
# It is usually a good idea to test a new configuration for syntactic #
# correctness before installing it (for example, by running the command #
# "exim -C /config/file.new -bV"). #
# #
########### IMPORTANT ########## IMPORTANT ########### IMPORTANT ########### log_selector = +all
######################################################################
# MAIN CONFIGURATION SETTINGS #
######################################################################
# Specify your host's canonical name here. This should normally be the fully # qualified "official" name of your host. If this option is not set, the # uname() function is called to obtain the name. In many cases this does # the right thing and you need not set anything explicitly.
# primary_hostname =
# The next three settings create two lists of domains and one list of hosts.
# These lists are referred to later in this configuration using the syntax # +local_domains, +relay_to_domains, and +relay_from_hosts, respectively. They # are all colon-separated lists:
trusted_users = apache
domainlist local_domains = lanvirtual.cl:lanvirtual.com
domainlist relay_to_domains = lanvirtual.cl:lanvirtual.com
hostlist relay_from_hosts = 127.0.0.1:localhost.localdomain:localhost:lanvirtual.cl
# Most straightforward access control requirements can be obtained by # appropriate settings of the above options. In more complicated situations, you # may need to modify the Access Control List (ACL) which appears later in this # file.
# The first setting specifies your local domains, for example:
#
# domainlist local_domains = my.first.domain : my.second.domain
#
# You can use "@" to mean "the name of the local host", as in the default # setting above. This is the name that is specified by primary_hostname, # as specified above (or defaulted). If you do not want to do any local # deliveries, remove the "@" from the setting above. If you want to accept mail # addressed to your host's literal IP address, for example, mail addressed to # "user@[192.168.23.44]", you can add "@[]" as an item in the local domains # list. You also need to uncomment "allow_domain_literals" below. This is not # recommended for today's Internet.
# The second setting specifies domains for which your host is an incoming relay.
# If you are not doing any relaying, you should leave the list empty. However, # if your host is an MX backup or gateway of some kind for some domains, you # must set relay_to_domains to match those domains. For example:
#
# domainlist relay_to_domains = *.myco.com : my.friend.org # # This will allow any host to relay through your host to those domains.
# See the section of the manual entitled "Control of relaying" for more # information.
# The third setting specifies hosts that can use your host as an outgoing relay # to any other host on the Internet. Such a setting commonly refers to a # complete local network as well as the localhost. For example:
#
# hostlist relay_from_hosts = 127.0.0.1 : 192.168.0.0/16 # # The "/16" is a bit mask (CIDR notation), not a number of hosts. Note that you # have to include 127.0.0.1 if you want to allow processes on your host to send # SMTP mail by using the loopback address. A number of MUAs use this method of # sending mail.
# All three of these lists may contain many different kinds of item, including # wildcarded names, regular expressions, and file lookups. See the reference # manual for details. The lists above are used in the access control list for # incoming messages. The name of this ACL is defined here:
acl_smtp_rcpt = acl_check_rcpt
# You should not change that setting until you understand how ACLs work.
# The following ACL entries are used if you want to do content scanning with # the exiscan-acl patch. When you uncomment one of these lines, you must also # review the respective entries in the ACL section further below.
# acl_smtp_mime = acl_check_mime
acl_smtp_data = acl_check_content
# This configuration variable defines the virus scanner that is used with # the 'malware' ACL condition of the exiscan acl-patch. If you do not use # virus scanning, leave it commented. Please read doc/exiscan-acl-readme.txt # for a list of supported scanners.
# av_scanner = sophie:/var/run/sophie
av_scanner = clamd:127.0.0.1 3310
# The following setting is only needed if you use the 'spam' ACL condition # of the exiscan-acl patch. It specifies on which host and port the SpamAssassin # "spamd" daemon is listening. If you do not use this condition, or you use # the default of "127.0.0.1 783", you can omit this option.
spamd_address = 127.0.0.1 783
# Specify the domain you want to be added to all unqualified addresses # here. An unqualified address is one that does not contain an "@" character # followed by a domain. For example, "caesar@rome.example" is a fully qualified # address, but the string "caesar" (i.e. just a login name) is an unqualified # email address. Unqualified addresses are accepted only from local callers by # default. See the recipient_unqualified_hosts option if you want to permit # unqualified addresses from remote sources. If this option is not set, the # primary_hostname value is used for qualification.
# qualify_domain =
# If you want unqualified recipient addresses to be qualified with a different # domain to unqualified sender addresses, specify the recipient domain here.
# If this option is not set, the qualify_domain value is used.
# qualify_recipient =
# The following line must be uncommented if you want Exim to recognize # addresses of the form "user@[10.11.12.13]" that is, with a "domain literal"
# (an IP address) instead of a named domain. The RFCs still require this form, # but it makes little sense to permit mail to be sent to specific hosts by # their IP address in the modern Internet. This ancient format has been used # by those seeking to abuse hosts by using them for unwanted relaying. If you # really do want to support domain literals, uncomment the following line, and # see also the "domain_literal" router below.
# allow_domain_literals
# No deliveries will ever be run under the uids of these users (a colon- # separated list). An attempt to do so causes a panic error to be logged, and # the delivery to be deferred. This is a paranoic safety catch. There is an # even stronger safety catch in the form of the FIXED_NEVER_USERS setting # in the configuration for building Exim. The list of users that it specifies # is built into the binary, and cannot be changed. The option below just adds # additional users to the list. The default for FIXED_NEVER_USERS is "root", # but just to be absolutely sure, the default here is also "root".
# Note that the default setting means you cannot deliver mail addressed to root # as if it were a normal user. This isn't usually a problem, as most sites have # an alias for root that redirects such mail to a human administrator.
never_users =
# The setting below causes Exim to do a reverse DNS lookup on all incoming # IP calls, in order to get the true host name. If you feel this is too # expensive, you can specify the networks for which a lookup is done, or # remove the setting entirely.
host_lookup = *
# The settings below, which are actually the same as the defaults in the # code, cause Exim to make RFC 1413 (ident) callbacks for all incoming SMTP # calls. You can limit the hosts to which these calls are made, and/or change # the timeout that is used. If you set the timeout to zero, all RFC 1413 calls # are disabled. RFC 1413 calls are cheap and can provide useful information # for tracing problem messages, but some hosts and firewalls have problems # with them. This can result in a timeout instead of an immediate refused # connection, leading to delays on starting up an SMTP session.
rfc1413_hosts = *
rfc1413_query_timeout = 0s
# By default, Exim expects all envelope addresses to be fully qualified, that # is, they must contain both a local part and a domain. If you want to accept # unqualified addresses (just a local part) from certain hosts, you can specify # these hosts by setting one or both of # # sender_unqualified_hosts = # recipient_unqualified_hosts = # # to control sender and recipient addresses, respectively. When this is done, # unqualified addresses are qualified using the settings of qualify_domain # and/or qualify_recipient (see above).
# If you want Exim to support the "percent hack" for certain domains, # uncomment the following line and provide a list of domains. The "percent # hack" is the feature by which mail addressed to x%y@z (where z is one of # the domains listed) is locally rerouted to x@y and sent on. If z is not one # of the "percent hack" domains, x%y is treated as an ordinary local part. This # hack is rarely needed nowadays; you should not enable it unless you are sure # that you really need it.
#
# percent_hack_domains =
#
# As well as setting this option you will also need to remove the test # for local parts containing % in the ACL definition below.
# When Exim can neither deliver a message nor return it to sender, it "freezes"
# the delivery error message (aka "bounce message"). There are also other # circumstances in which messages get frozen. They will stay on the queue for # ever unless one of the following options is set.
# This option unfreezes frozen bounce messages after two days, tries # once more to deliver them, and ignores any delivery failures.
ignore_bounce_errors_after = 2d
# This option cancels (removes) frozen messages that are older than a week.
timeout_frozen_after = 7d
# This option, if uncommented, allows Exim to listen on ports other than # just the default port 25. For example, you may wish Exim to sldo listen # on the 'message submission' port 587 for roaming clients which cannot # use port 25 directly from their current location. (cf. RFC 2476).
#
# daemon_smtp_ports = smtp : msa
# This option instructs Exim to advertise the availability of encrypted # connections to all hosts, and uses the certificate which is automatically # generated when the RPM is installed. You can disable TLS, should you need # to do so, by commenting out the three lines below.
tls_advertise_hosts = *
tls_certificate = /usr/share/ssl/certs/exim.pem tls_privatekey = /usr/share/ssl/private/exim.pem
# This setting, if uncommented, allows users to authenticate using # their system passwords against saslauthd if they connect over a # secure connection. If you have network logins such as NIS or # Kerberos rather than only local users, then you possibly also want # to configure /etc/sysconfig/saslauthd to use the 'pam' mechanism # too. Once a user is authenticated, the acl_check_rcpt ACL then # allows them to relay through the system.
#
# auth_advertise_hosts = ${if eq {$tls_cipher}{}{}{*}} # # By default, we set this option to allow SMTP AUTH from nowhere # (Exim's default would be to allow it from anywhere, even on an # unencrypted connection).
#
# Comment this one out if you uncomment the above. Did you make sure # saslauthd is actually running first?
#
auth_advertise_hosts = *
######################################################################
# ACL CONFIGURATION #
# Specifies access control lists for incoming SMTP mail #
######################################################################
begin acl
# This access control list is used for every RCPT command in an incoming # SMTP message. The tests are run in order until the address is either # accepted or denied.
# to block certain wellknown exploits, Deny for local domains if # local parts begin with a dot or contain @ % ! / |
acl_check_rcpt:
# Accept if the source is local SMTP (i.e. not over TCP/IP). We do this by
# testing for an empty sending host field.
accept authenticated = *
accept hosts = :
#############################################################################
# The following section of the ACL is concerned with local parts that contain
# @ or % or ! or / or | or dots in unusual places.
#
# The characters other than dots are rarely found in genuine local parts, but
# are often tried by people looking to circumvent relaying restrictions.
# Therefore, although they are valid in local parts, these rules lock them
# out, as a precaution.
#
# Empty components (two dots in a row) are not valid in RFC 2822, but Exim
# allows them because they have been encountered. (Consider local parts
# constructed as "firstinitial.secondinitial.familyname" when applied to
# someone like me, who has no second initial.) However, a local part starting
# with a dot or containing /../ can cause trouble if it is used as part of a
# file name (e.g. for a mailing list). This is also true for local parts that
# contain slashes. A pipe symbol can also be troublesome if the local part is
# incorporated unthinkingly into a shell command line.
#
# Two different rules are used. The first one is stricter, and is applied to
# messages that are addressed to one of the local domains handled by this
# host. It blocks local parts that begin with a dot or contain @ % ! / or |.
# If you have local accounts that include these characters, you will have to
# modify this rule.
deny message = Restricted characters in address
domains = +local_domains
local_parts = ^[.] : ^.*[@%!/|]
# The second rule applies to all other domains, and is less strict. This
# allows your own users to send outgoing messages to sites that use slashes
# and vertical bars in their local parts. It blocks local parts that begin
# with a dot, slash, or vertical bar, but allows these characters within the
# local part. However, the sequence /../ is barred. The use of @ % and ! is
# blocked, as before. The motivation here is to prevent your users (or
# your users' viruses) from mounting certain kinds of attack on remote sites.
deny message = Restricted characters in address
domains = !+local_domains
local_parts = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
#############################################################################
# Accept mail to postmaster in any local domain, regardless of the source,
# and without verifying the sender.
accept local_parts = postmaster
domains = +local_domains
# Deny unless the sender address can be verified.
require verify = sender
#############################################################################
# There are no checks on DNS "black" lists because the domains that contain
# these lists are changing all the time. However, here are two examples of
# how you could get Exim to perform a DNS black list lookup at this point.
# The first one denies, while the second just warns.
#
# deny message = rejected because $sender_host_address is in a black list at $dnslist_domain\n$dnslist_text
# dnslists = black.list.example
#
# warn message = X-Warning: $sender_host_address is in a black list at $dnslist_domain
# log_message = found in $dnslist_domain
# dnslists = black.list.example
#############################################################################
# Check HELO after RCPT
deny message = Underscores are not allowed in hostnames.
condition = ${if match\
{$sender_helo_name}\
{\N.*_.*\N}\
{yes}{no}}
# A remote host using my helo is wrong
deny hosts = !+relay_from_hosts
message = Using my HELO is identity theft.
condition = ${if match\
{$sender_helo_name}\
{\N^(213\.84\.159\.78|(.*\.)?sput\.nl)$\N}\
{yes}{no}}
# A remote host can't be localhost or localdomain
deny hosts = !+relay_from_hosts
message = $sender_helo_name is a silly HELO.
condition = ${if match\
{$sender_helo_name}\
{\N^(127\.0\.0\.1|localhost(\.localdomain)?)$\N}\
{yes}{no}}
# Helo should not be RFC 1918 address
deny hosts = !+relay_from_hosts
message = RFC 1918 IP address in HELO.
condition = ${if match\
{$sender_helo_name}\
{\N^(\[)?(10\.[0-9]{1,3}|172\.(1[6-9]|2[0-9]|31)|192\.168)\.[0-9]{1,3}\.[0-9]{1,3}(\])?$\N}\
{yes}{no}}
# Helo should be hostname
deny hosts = !+relay_from_hosts
message = HELO should be hostname. See http://www.sput.nl/spam/
condition = ${if !match\
{$sender_helo_name}\
{\N.*[A-Za-z].*\N}\
{yes}{no}}
# Helo should be FQDN
#deny hosts = !+relay_from_hosts
# message = HELO should be Fully Qualified Domain Name Host.Domain.Tld See RFC821
# condition = ${if !match\
# {$sender_helo_name}\
# {\N.*[A-Za-z].*\..*[A-Za-z].*\N}\
# {yes}{no}}
# Domain can't be localhost or localdomain
deny message = $sender_address_domain is a silly domain.
condition = ${if match\
{$sender_address_domain}\
{\N^(localhost|localhost\.localdomain|localdomain)$\N}\
{yes}{no}}
#DNSLIST BLACKLIST
accept hosts = +relay_from_hosts
drop message = REJECTED - ${sender_host_address} is blacklisted at $dnslist_domain ($dnslist_value); ${dnslist_text}
dnslists = sbl-xbl.spamhaus.org/<;$sender_host_address;$sender_address_domain
drop message = REJECTED - ${sender_address_domain} is blacklisted at ${dnslist_domain}; ${dnslist_text}
dnslists = nomail.rhsbl.sorbs.net/$sender_address_domain
drop message = REJECTED - ${sender_host_address} is blacklisted at ${dnslist_domain}; ${dnslist_text}
dnslists = bl.spamcop.net : cbl.abuseat.org : list.dsbl.org
#Rcpt ACL
drop message = Legitimate bounces are never sent to more than one recipient.
senders = : postmaster@*
condition = ${if >{$recipients_count}{1}{true}{false}}
drop message = REJECTED - Too many failed recipients - count = $rcpt_fail_count
log_message = REJECTED - Too many failed recipients - count = $rcpt_fail_count
condition = ${if > {${eval:$rcpt_fail_count}}{3}{yes}{no}}
condition = ${run{/etc/exim/scripts/log-file /var/spool/spam/host-spam.txt $sender_host_address}{yes}{yes}}
!verify = recipient/callout=2m,defer_ok,use_sender
drop condition = ${lookup{$local_part@$domain}lsearch{/etc/exim/only-used-by-spammers} {yes}{no}}
logwrite = :main,reject: $sender_host_address - $local_part@$domain is only used by spammers
message = I don't think so
# Accept if the address is in a local domain, but only if the recipient can
# be verified. Otherwise deny. The "endpass" line is the border between
# passing on to the next ACL statement (if tests above it fail) or denying
# access (if tests below it fail).
accept domains = +local_domains
endpass
verify = recipient
# Accept if the address is in a domain for which we are relaying, but again,
# only if the recipient can be verified.
accept domains = +relay_to_domains
endpass
verify = recipient
# If control reaches this point, the domain is neither in +local_domains
# nor in +relay_to_domains.
# Accept if the message comes from one of the hosts for which we are an
# outgoing relay. Recipient verification is omitted here, because in many
# cases the clients are dumb MUAs that don't cope well with SMTP error
# responses. If you are actually relaying out from MTAs, you should probably
# add recipient verification here.
accept hosts = +relay_from_hosts
# Accept if the message arrived over an authenticated connection, from
# any host. Again, these messages are usually from MUAs, so recipient
# verification is omitted.
# Reaching the end of the ACL causes a "deny", but we might as well give
# an explicit message.
deny message = relay not permitted
# These access control lists are used for content scanning with the exiscan-acl # patch. You must also uncomment the entries for acl_smtp_data and acl_smtp_mime # (scroll up), otherwise the ACLs will not be used. IMPORTANT: the default entries here # should be treated as EXAMPLES. You MUST read the file doc/exiscan-acl-spec.txt # to fully understand what you are doing ...
acl_check_mime:
# Decode MIME parts to disk. This will support virus scanners later.
warn decode = default
# File extension filtering.
deny message = Blacklisted file extension detected
condition = ${if match \
{${lc:$mime_filename}} \
{\N(\.exe|\.pif|\.bat|\.scr|\.lnk|\.com)$\N} \
{1}{0}}
# # Reject messages that carry chinese character sets.
# # WARNING: This is an EXAMPLE.
# deny message = Sorry, noone speaks chinese here
# condition = ${if eq{$mime_charset}{gb2312}{1}{0}}
accept
acl_check_content:
# Reject virus infested messages.
deny message = This message contains malware ($malware_name)
malware = *
# Always add X-Spam-Score and X-Spam-Report headers, using SA system-wide settings
# (user "nobody"), no matter if over threshold or not.
warn message = X-Spam-Score: $spam_score ($spam_bar)
spam = nobody:true
warn message = X-Spam-Report: $spam_report
spam = nobody:true
# Add X-Spam-Flag if spam is over system-wide threshold
warn message = X-Spam-Flag: YES
spam = nobody
# Reject spam messages with score over 10, using an extra condition.
deny message = This message scored $spam_score points. Congratulations!
spam = nobody:true
condition = ${if >{$spam_score_int}{100}{1}{0}}
# finally accept all the rest
accept
######################################################################
# ROUTERS CONFIGURATION #
# Specifies how addresses are handled #
######################################################################
# THE ORDER IN WHICH THE ROUTERS ARE DEFINED IS IMPORTANT! #
# An address is passed to each router in turn until it is accepted. # ######################################################################
begin routers
# This router routes to remote hosts over SMTP by explicit IP address, # when an email address is given in "domain literal" form, for example, # <user@[192.168.35.64]>. The RFCs require this facility. However, it is # little-known these days, and has been exploited by evil people seeking # to abuse SMTP relays. Consequently it is commented out in the default # configuration. If you uncomment this router, you also need to uncomment # allow_domain_literals above, so that Exim can recognize the syntax of # domain literal addresses.
# domain_literal:
# driver = ipliteral
# domains = ! +local_domains
# transport = remote_smtp
# This router routes addresses that are not in local domains by doing a DNS # lookup on the domain name. Any domain that resolves to 0.0.0.0 or to a # loopback interface address (127.0.0.0/8) is treated as if it had no DNS # entry. Note that 0.0.0.0 is the same as 0.0.0.0/32, which is commonly treated # as the local host inside the network stack. It is not 0.0.0.0/0, the default # route. If the DNS lookup fails, no further routers are tried because of # the no_more setting, and consequently the address is unrouteable.
# SpamAssassin
#spamcheck_router:
# no_verify
# check_local_user
# # When to scan a message :
# # - it isn't already flagged as spam
# # - it isn't already scanned
# condition = "${if and { {!def:h_X-Spam-Flag:} {!eq {$received_protocol}{spam-scanned}}} {1}{0}}"
# driver = accept
# transport = spamcheck
smarthost:
driver = manualroute
transport = remote_smtp
domains = ! +local_domains
route_list = * k2smtpout.secureserver.net
dnslookup:
driver = dnslookup
domains = ! +local_domains
transport = remote_smtp
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
no_more
# The remaining routers handle addresses in the local domain(s).
# This router handles aliasing using a linearly searched alias file with the # name SYSTEM_ALIASES_FILE. When this configuration is installed automatically, # the name gets inserted into this file from whatever is set in Exim's # build-time configuration. The default path is the traditional /etc/aliases.
# If you install this configuration by hand, you need to specify the correct # path in the "data" setting below.
#
##### NB You must ensure that the alias file exists. It used to be the case ##### NB that every Unix had that file, because it was the Sendmail default.
##### NB These days, there are systems that don't have it. Your aliases ##### NB file should at least contain an alias for "postmaster".
#
# If any of your aliases expand to pipes or files, you will need to set # up a user and a group for these deliveries to run under. You can do # this by uncommenting the "user" option below (changing the user name # as appropriate) and adding a "group" option if necessary. Alternatively, you # can specify "user" on the transports that are used. Note that the transports # listed below are the same as are used for .forward files; you might want # to set up different ones for pipe and file deliveries from aliases.
system_aliases:
driver = redirect
allow_fail
allow_defer
data = ${lookup{$local_part}lsearch{/etc/aliases}}
# user = exim
file_transport = address_file
pipe_transport = address_pipe
aliases_with_domain:
driver = redirect
data = ${lookup{$local_part@$domain}lsearch{/etc/exim/alias}}
# This router handles forwarding using traditional .forward files in users'
# home directories. If you want it also to allow mail filtering when a forward # file starts with the string "# Exim filter" or "# Sieve filter", uncomment # the "allow_filter" option.
# If you want this router to treat local parts with suffixes introduced by "-"
# or "+" characters as if the suffixes did not exist, uncomment the two local_ # part_suffix options. Then, for example, xxxx-foo@your.domain will be treated # in the same way as xxxx@your.domain by this router. You probably want to make # the same change to the localuser router.
# The no_verify setting means that this router is skipped when Exim is # verifying addresses. Similarly, no_expn means that this router is skipped if # Exim is processing an EXPN command.
# The check_ancestor option means that if the forward file generates an # address that is an ancestor of the current one, the current one gets # passed on instead. This covers the case where A is aliased to B and B # has a .forward file pointing to A.
# The three transports specified at the end are those that are used when # forwarding generates a direct delivery to a file, or to a pipe, or sets # up an auto-reply, respectively.
userforward:
driver = redirect
check_local_user
# local_part_suffix = +* : -*
# local_part_suffix_optional
file = $home/.forward
# allow_filter
no_verify
no_expn
check_ancestor
file_transport = address_file
pipe_transport = address_pipe
reply_transport = address_reply
# This router matches local user mailboxes. If the router fails, the error # message is "Unknown user".
# If you want this router to treat local parts with suffixes introduced by "-"
# or "+" characters as if the suffixes did not exist, uncomment the two local_ # part_suffix options. Then, for example, xxxx-foo@your.domain will be treated # in the same way as xxxx@your.domain by this router.
localuser:
driver = accept
check_local_user
# local_part_suffix = +* : -*
# local_part_suffix_optional
transport = local_delivery
cannot_route_message = Unknown user
######################################################################
# TRANSPORTS CONFIGURATION #
######################################################################
# ORDER DOES NOT MATTER #
# Only one appropriate transport is called for each delivery. #
######################################################################
# A transport is used only when referenced from a router that successfully # handles an address.
begin transports
# SpamAssassin
#spamcheck:
# driver = pipe
# command = /usr/sbin/exim -oMr spam-scanned -bS # use_bsmtp = true # transport_filter = /usr/local/bin/spamc # home_directory = "/tmp"
# current_directory = "/tmp"
# # must use a privileged user to set $received_protocol on the way back in!
# user = exim
# group = mail
# log_output = true
## return_fail_output = true
# return_path_add = false
# message_prefix =
#message_suffix =
#
# This transport is used for delivering messages over SMTP connections.
remote_smtp:
driver = smtp
# This transport is used for local delivery to user mailboxes in traditional # BSD mailbox format. By default it will be run under the uid and gid of the # local user, and requires the sticky bit to be set on the /var/mail directory.
# Some systems use the alternative approach of running mail deliveries under a # particular group instead of using the sticky bit. The commented options below # show how this can be done.
local_delivery:
driver = appendfile
file = /var/mail/$local_part
delivery_date_add
envelope_to_add
return_path_add
group = mail
mode = 0660
# This transport is used for handling pipe deliveries generated by alias or # .forward files. If the pipe generates any standard output, it is returned # to the sender of the message as a delivery error. Set return_fail_output # instead of return_output if you want this to happen only when the pipe fails # to complete normally. You can set different transports for aliases and # forwards if you want to - see the references to address_pipe in the routers # section above.
address_pipe:
driver = pipe
return_output
# This transport is used for handling deliveries directly to files that are # generated by aliasing or forwarding.
address_file:
driver = appendfile
delivery_date_add
envelope_to_add
return_path_add
# This transport is used for handling autoreplies generated by the filtering # option of the userforward router.
address_reply:
driver = autoreply
# This transport is used to deliver local mail to cyrus IMAP server via UNIX # socket.
#
#local_delivery:
# driver = lmtp
# command = "/usr/lib/cyrus-imapd/deliver -l"
# batch_max = 20
# user = cyrus
######################################################################
# RETRY CONFIGURATION #
######################################################################
begin retry
# This single retry rule applies to all domains and all errors. It specifies
# retries every 15 minutes for 2 hours, then increasing retry intervals,
# starting at 1 hour and increasing each time by a factor of 1.5, up to 16
# hours, then retries every 6 hours until 4 days have passed since the first
# failed delivery.
# Address or Domain Error Retries
# ----------------- ----- -------
* * F,2h,15m; G,16h,1h,1.5; F,4d,6h
######################################################################
# REWRITE CONFIGURATION #
######################################################################
# There are no rewriting specifications in this default configuration file.
begin rewrite
######################################################################
# AUTHENTICATION CONFIGURATION #
######################################################################
# There are no authenticator specifications in this default configuration file.
begin authenticators
plain:
driver = plaintext
public_name = PLAIN
server_prompts = :
server_condition = "${if saslauthd{{$2}{$3}{smtp}} {1}}"
server_set_id = $2
login:
driver = plaintext
public_name = LOGIN
server_prompts = "Username:: : Password::"
server_condition = "${if saslauthd{{$1}{$2}{smtp}} {1}}"
server_set_id = $1
######################################################################
# CONFIGURATION FOR local_scan() #
######################################################################
# If you have built Exim to include a local_scan() function that contains
# tables for private options, you can define those options here. Remember to
# uncomment the "begin" line. It is commented by default because it provokes
# an error with Exim binaries that are not built with LOCAL_SCAN_HAS_OPTIONS
# set in the Local/Makefile.
# begin local_scan
# End of Exim configuration file